"It still doesn't seem right" --instead of going with what we say, go with your internal hunches. You will never be comfortable with leaving a section of a book if you have that hunch, no matter what other people say. I'm not just talking about the graphic aspect, but anything that gives you that feeling.
It can be a lack of fact-checking, wordiness, a boring section, something that takes the story in the wrong direction, corny conversation, or something that will disturb the types of readers you will get.
Ask God for solutions, how He would like you to handle that part. He's an good writer, an experienced editor, and knows more about subtle wording than we do.
If you're writing with the assumption that your book will be distributed, you are living with every word that comes out and every decision you make. Imagine an interviewer asking you about a part of the book that disturbs you. You're in a realm where you have abundant grace with time, for the words that come from you. Use that time.
Specifically on the graphic content-- identifying with the character, you might feel too personally revealed, yourself.
You're in charge. Design your book the way you would want to read it.
